Large-visual-field off-axis four-mirror lens device

A technology with a large field of view and a lens, applied in the field of large field of view off-axis four-mirror lens devices, can solve the problems of structural specific strength, specific stiffness lightweight rate and thermal stability limitations, and achieve high lightweight rate and thermal stability. Good performance and good assembly process

Inactive Publication Date: 2017-10-27
CHANGCHUN INST OF OPTICS FINE MECHANICS & PHYSICS CHINESE ACAD OF SCI
View PDF4 Cites 4 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Although the realization method of the combined support structure is more flexible, it has limitations in terms of structural specific strength, specific stiffness, lightweight rate and thermal stability.

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • Large-visual-field off-axis four-mirror lens device
  • Large-visual-field off-axis four-mirror lens device
  • Large-visual-field off-axis four-mirror lens device

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0023] The embodiments of the present invention will be described in detail below. Examples of the embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals indicate the same or similar elements or elements with the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary, and are intended to explain the present invention, but should not be construed as limiting the present invention.

[0024] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", " The orientation or positional relationship indicated by “back”, “left”, “right”, “vertical”, “horizontal”, “top”, “bottom”, “inner”, and “outer” are based on the orientation shown in the drawings or The positional relationship is only for the convenience of describing the present invention and simplifying the ...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to view more

PUM

No PUM Login to view more

Abstract

The invention provides a large-visual-field off-axis four-mirror lens device which comprises an integrated lens frame and also comprises a first mirror, a second mirror, a third mirror, a fourth mirror and a detector orderly installed on the lens frame along a light transmission direction. The first mirror is fixed to a first lens seat which is installed on the lens frame. The second mirror is fixed to a second lens seat which is installed on the lens frame. The third mirror is fixed to a third lens seat which is installed on the lens frame. The fourth mirror is fixed to a fourth lens seat which is installed on the lens frame. The large-visual-field off-axis four-mirror lens device provided by the invention has the advantages of good mechanical performance, a high lightweight ratio, small thermal deformation and good comprehensive space environment adaptability.

Description

Technical field [0001] The invention relates to the technical field of space remote sensing applications, in particular to an off-axis four-reflection lens device with a large field of view. Background technique [0002] The off-axis reflective optical system has no chromatic aberration, no center obstruction, good temperature adaptability, and high degree of light weight. It can also correct multiple aberrations when using aspheric mirrors, and has a wide range of applications in the field of space remote sensing. The space reflection optical system is mainly constrained by the optical structure, launching and carrying conditions and the space track environment. The supporting structure needs to have high static stiffness, dynamic stiffness, structural strength and thermal dimensional stability at the same time to ensure that the optical components and supporting structure are The inner lens has small distortion, strong resistance to mechanical environment, and good thermal envi...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to view more

Application Information

Patent Timeline
no application Login to view more
Patent Type & Authority Applications(China)
IPC IPC(8): G02B17/06
CPCG02B17/0663
Inventor 郭权锋赵伟国陈波刘阳
Owner CHANGCHUN INST OF OPTICS FINE MECHANICS & PHYSICS CHINESE ACAD OF SCI
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Try Eureka
PatSnap group products

Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic.

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap